MMBT3904WT1G, NPN, SMMBT3904WT1G, NPN, MMBT3906WT1G, PNP,
SMMBT3906WT1G, PNP
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3
ELECTRICAL CHARACTERISTICS (T
A
= 25°C unless otherwise noted) (Continued)
Characteristic
Symbol Min Max Unit
SMALL−SIGNAL CHARACTERISTICS
Current−Gain − Bandwidth Product
(I
C
= 10 mAdc, V
CE
= 20 Vdc, f = 100 MHz) MMBT3904WT1, SMMBT3904WT1
(I
C
= −10 mAdc, V
CE
= −20 Vdc, f = 100 MHz) MMBT3906WT1, SMMBT3906WT1
f
T
300
250
−
−
MHz
Output Capacitance
(V
CB
= 5.0 Vdc, I
E
= 0, f = 1.0 MHz) MMBT3904WT1, SMMBT3904WT1
(V
CB
= −5.0 Vdc, I
E
= 0, f = 1.0 MHz) MMBT3906WT1, SMMBT3906WT1
C
obo
−
−
4.0
4.5
pF
Input Capacitance
(V
EB
= 0.5 Vdc, I
C
= 0, f = 1.0 MHz) MMBT3904WT1, SMMBT3904WT1
(V
EB
= −0.5 Vdc, I
C
= 0, f = 1.0 MHz) MMBT3906WT1, SMMBT3906WT1
C
ibo
−
−
8.0
10.0
pF
Input Impedance
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz) MMBT3904WT1, SMMBT3904WT1
(V
CE
= −10 Vdc, I
C
= −1.0 mAdc, f = 1.0 kHz) MMBT3906WT1, SMMBT3906WT1
h
ie
1.0
2.0
10
12
k W
Voltage Feedback Ratio
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz) MMBT3904WT1, SMMBT3904WT1
(V
CE
= −10 Vdc, I
C
= −1.0 mAdc, f = 1.0 kHz) MMBT3906WT1, SMMBT3906WT1
h
re
0.5
0.1
8.0
10
X 10
−4
Small−Signal Current Gain
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz) MMBT3904WT1, SMMBT3904WT1
(V
CE
= −10 Vdc, I
C
= −1.0 mAdc, f = 1.0 kHz) MMBT3906WT1, SMMBT3906WT1
h
fe
100
100
400
400
−
Output Admittance
(V
CE
= 10 Vdc, I
C
= 1.0 mAdc, f = 1.0 kHz) MMBT3904WT1, SMMBT3904WT1
(V
CE
= −10 Vdc, I
C
= −1.0 mAdc, f = 1.0 kHz) MMBT3906WT1, SMMBT3906WT1
h
oe
1.0
3.0
40
60
mmhos
Noise Figure
(V
CE
= 5.0 Vdc, I
C
= 100 mAdc, R
S
= 1.0 k W, f = 1.0 kHz)
MMBT3904WT1, SMMBT3904WT1
(V
CE
= −5.0 Vdc, I
C
= −100 mAdc, R
S
= 1.0 k W, f = 1.0 kHz)
MMBT3906WT1, SMMBT3906WT1
NF
−
−
5.0
4.0
dB
SWITCHING CHARACTERISTICS
Characteristic
Condition Symbol Min Max Unit
Delay Time
(V
CC
= 3.0 Vdc, V
BE
= −0.5 Vdc)
MMBT3904WT1, SMMBT3904WT1
(V
CC
= −3.0 Vdc, V
BE
= 0.5 Vdc)
MMBT3906WT1, SMMBT3906WT1
t
d
−
−
35
35
ns
Rise Time
(I
C
= 10 mAdc, I
B1
= 1.0 mAdc)
MMBT3904WT1, SMMBT3904WT1
(I
C
= −10 mAdc, I
B1
= −1.0 mAdc)
MMBT3906WT1, SMMBT3906WT1
t
r
−
−
35
35
Storage Time
(V
CC
= 3.0 Vdc, I
C
= 10 mAdc)
MMBT3904WT1, SMMBT3904WT1
(V
CC
= −3.0 Vdc, I
C
= −10 mAdc)
MMBT3906WT1, SMMBT3906WT1
t
s
−
−
200
225
ns
Fall Time
(I
B1
= I
B2
= 1.0 mAdc) MMBT3904WT1, SMMBT3904WT1
(I
B1
= I
B2
= −1.0 mAdc) MMBT3906WT1, SMMBT3906WT1
t
f
−
−
50
75